Algebra 1 Table Contents

Chapter 4 Fitting a Line to Data

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Ch4.1 A Formula for Slope

Investigation: Points and Slope




More Geometry Sketchpad files about SLOPE

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Ch4.2 Writing a Linear Equation to Fit Data

Investigation: Beam Strength with Data


(From Jim Rahn website; saturated fat vs total fat in different hamburgers; predicting total fat)

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Ch4.3 Point-Slope Form of a Linear Equation

Investigation: The Point-Slope Form for Linear Equations

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Ch4.4 Equivalent Algebraic Equations

Investigation: Equivalent Equations

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Ch4.5 Writing Point-Slope Equations to Fit Data

Investigation: Life Expectancy

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Ch4.6 More on Modeling

Investigation: Bucket Brigade

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Ch4.7 Applications of Modeling

Investigation: What's My Line?

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Ch4.8 Activity

Bungee Jumping

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Teacher Resources

Jim Rahn Website (AP Calculus Teacher with excellent resources Algebra 1)

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Interactive Word Wall

Students generate the following vocabulary terms to post on a bulletin board or word wall in the classroom.

• rate of change
• slope
• y-intercept
• start value
• positive slope
• increasing
• negative slope
• decreasing
• no slope
• zero slope
• vertical
• horizontal
• change in y
• change in x
• incline
• decline
• rise
• run
• steepness
• slope formula
• coefficient

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Common Assessments

Exit Ticket Assessments (Examples)
Teresa suggests: Use the problems from the parent guide as exit slip assessments.

4.1

• Given y = 3x + 4; identify the rate of change and the y-intercept

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4.2

• Write an equation with zero slope, another equation with rate of change 3 and y-intercept 4, and last an equation with negative slope.
• Match a graph with a table.
• Given three different tables that are linear data, one with consecutive values, one without y-intercept, and one with non consecutive values, write the equation of line.

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4.3

• Ch3 Test Challenge problem; identify y-int and rate of change with different scale axes from 2nd quadrant

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4.4

• Write an equation of a line given a table of data. Extra points were given for each equation that was written.

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Skipped 4.6 and 4.7